Coverage is international, including literature from over 125 countries. Indexes over 9,000 journals and 2,500 books are every year. Updated weekly. The Helminthology database is part of CAB Direct"s data.

Indexes doctoral dissertations completed in the U.S. Includes some master"s theses and foreign language dissertations. Full text of many dissertations 1997-. For UConn, 2012-, see OpenCommons@UConn.
Holdings start in 1861 and go to the present day. Full-text coverage is best starting in 1997, but full text of older dissertations can also be found.

Comprehensive in coverage of living and non-living resources, meteorology and geology, plus environmental, technological, and legislative topics. Part of ProQuest's ASFA: Aquatic Sciences and Fisheries Abstracts collection.
Major areas of coverage include: